Apparatus for the preparation of wort



(No Model.)

C. RAGE. APPARATUS PoR THE PREPARATION 0F WORT.

110.469,718. Patented Mar.v 1, 1892.

UNITED STATES PATENT OFFICE.

CARL BACI-I, OF CHICAGO, ILLINOIS.

APPARATUS FO R TH E PREPARATION OF WO RT.

SPECIFICATION forming part of Letters Patent No. 469,718, dated March 1, 1892.

A Application filed January 8, 1891. Serial No. 377,167. (No model.)

T a/ZZ whom it may concern:

Be it known that I, CARL RACH, a subject of the.King of Prussia, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful .Im-

, provement in Apparatus for the Preparation of Wort, of which the following is a full,-clear, and exact specification-v.

My invention relates to devices for the preparation of wort from malt or natural cereals, or both, and has for its object to provide means whereby the manufacture of suchA wort is facilitated. It is illustrated in the accompanying drawings, wherein- Figure 1 is a general view. Fig. 2 is a detail of the mash-tun. Fig. 3 is avdetail plan View of the header N2.

A is a mash-tun on an Aelevated support A A.

B is a steam-jacketed kettle.

C is a cooker. The cooker is provided with a stirrer driven from the wheel D by the belt D', which is driven by the pulley D2, asso-l ciated with the pulley D3, the driving-belt of which D4 is driven from the pulley D5 on the counter-shaft D5. Another pulley D7 on this shaft drives the beltv D2, which rotates the shaft D9, thus operating the gear D1o to drive the meshing-gear D11, and `thus operate the stirrer in the mash-tun A.

E is a thermometer to indicate the temperature of the contents of the cooker C.

E is a pressure-gage connected with the cooker, and E2 is a safety-valve, preferably Set at sixty pounds.

F is a portion of the cooker provided with the sliding valve F', controlled by the handle F2, and controlling the connection between the cooker and the pipe F2, which leads to the mash-tun A.

G is a tun elevated above the tun A and provided with a coil G ,supplied with a fluidpipe G2. y

G2 is a thermometer.

His a cold-water tank, and' J is the hotwater tank, and a pipe J controlled by the valves J2 J 5, leads from the two tanks,'as indicated, to a pump J 4. This pipe is connected by the pipe J5 with the tun G and by the pipe J 5 with the tun A, this latter pipebeing controlled by the valve J1.

The steam-jacketed heater is connected to steam-pump J4 by the pipe J2.

J 2 is a pipe leading from below the tun A to the'heater B, and is controlled by the valves .T10 J20, and a similar pipe J11, in like manner controlled by the valves J10 J 21, (shown in Fig. 2, but indicated only by the letters in Fig. l, since in the latter case the scale is too small to permit the illustration of the valves) leads from the tun A to the cooker C. From the tank J leads the pipe K, having the valves K and K2 to the pipe K12, which leadsv into the tank K5. From this tank leads the pipe K1 to the vacuum-pan K5, operated by the pump K6 and connected with the condenser K7, whence leads the water-pipe K8. The pipe K13 contains the valve K11 and leads into the tun G.

L is the steam-pipe, which supplies the steam to the heater B. The tank K3 is also connected with an air-pump by the pipe M,

4whereby it may be exhausted, and with a steam-supply by the pipe M', having the valve M2 therein.

N is a false or perforated bottom in the tun A, and the upper portion of the stem of the valve J1 connects with the plate N', which moves in the tun A below such false bottom to close or open connection between the tun A and the pipes J9 or J11. N2 are pipes opening from below such false bottom and leading to the header N2, connected with the pipe K. From this header leads the pipe N1, having the valve N5 and opens into the drum N5, whence leads the pipe N7 to the heater B.

J 15 is a valve in the pipe J O is a pipe leading from the tun G to the tun A and controlled by the valve O.

P is a door in the top of the tun A, and P a vsmall cylinder attached to the hook P2, which IOO ing a tubular conduit for the contents .of the tun, opening at a level higher than the level ot' the tube P", which tube in turn forms an outlet when the controlling-valve plate N is raised for the contents of the tun opening thereinto at a level higher than do the pipes N2.

R is a steam-pipe to supply steam to the cooker C.

The pipe T is designed to carry 0E steam from the kettle, and the pipe K13 connects the tankV K2 with the storage-tank G and also serves to make part lof the connection-passage from tank K3 to the tun.

The use and operation of myinvention are as follows: A quantity of malt is placed in the tun A and stirred and mixed untilasuitable mash is formed. This mash is permitted to stand until it separates into a thin liquid and a thick mass. The cylinder P is now placed in positionI over the plate N and upon the false bottom and within the tun A, its u pper extremity beingin the thin liquid which has risen vto the top. The valve J10 is new` operated so that the plate N retreats from the false bottom, whereupon the valve J 21 is closed and the valve J20 opened, and the thin liquid will pass through the pipe J2 into the heater B, thence through the pipe J 8 through the pump J4 to the pipe J and pipe J5 into the tun G, assuming that the valves J 3 and J 7 are closed and the valve .T15 open. This thin liquid 1n the tun G is now suitably cooled by a current of cooling-fluid passing from the pipe G2 into the coil G. I now remove thecylinder P and permit the thick mixture or mash to pass through the pipes P and J 9 into the heater B, where it remains, the valve in the pipe J s being closed. By the `introduction of steam to the pipe L into the jacket of the heater B said 'it `should be cooked for a proper period. A

quantity of rawr or natural cereals, with from ten to fifteen per cent. of malt, isintroduced into the cooker C, and steam is supplied through the pipe R, and the contents of the cooker C is stirred and cooked, and this process continues at a temperature somewhat above boiling-point and until the pressure in the cooker C has reached about forty-five pounds.

The contents of the heater B is now forced by means of the pump J4 through pipes Jand .l into the tun A, the proper valve bei-ng suit ably se't. By operating the handle F2 the slide-valve F is opened and the pressure in the cooker C forces its contents through the pipe F2 into the tun A, where it is stirred and mixed with the contents of the heater B. It is `understood of course in these last operations that the valve J10 is closed. The con- -ten'ts `of the tun A is now stirred and cooled by the introduction of water at the top or from Vtank H through the'pipes K20 and K and the pipes N2 N2, the valves being suitably set. Half of the contents of `the tun lG is now drawn into the tun A through the pipe 0, the same having been raised to about the same temperature as the contents of the `the tun A into the tank K3.

tun A, and the stirring `is continued in the tun A. The remainder of the contents ofthe tun G is now raised to a higher temperature and introduced into the tun A. This lastmentioned portion of the contents of the tun G is not introduced into the tun A until the erythrodextrin reaction has ceased in the tun A. The wort will thus be formed in the tun A after a reasonable time, and is then drawn .N2 into the header N3, through the pipe N4 into the drum N6, through the pipe N7 into the heater or kettle B. When the strong wort has been sufficiently drawn ott, the valve N5 is closed and the header N3 is connected with the tank K3. This tank is then exhausted, so that the weak wort is sucked from This weak wort in the tank K3 may be -returned by means ot steam-pressure applied through the pipe M to the tun G, or it may be exhausted from the tank K3 into the vacuum-pan K5, where it .is concentrated'or reduced. If desired, th'ethick mash from the tun A may be passed through the pipe J11 into theeooker C and there treated, instead -of being carried to the heater B. Should it be found necessary to heat the contents of the tun A, it may be done by intro# ducing hot water from the tank J.

It will be seen that 'there are in effect three sets of pipes or lconduits between the mash`- tun A and the kettle B, each set opening into the mash-tun at a level different from 'the others. Thus the pipes N2 open into the tun at the lowest .level-that is, at the bottom thereof-andare connected through the parts N3 N4 N6 N7 with the kettle, forming one set -ot connections. The pipe or tube P `opens into the mash-tun at a higher level than `do the pipes N2, and is connected with the kettle through the pipe J 9 and forms another set of connections, and the cylinder P opens into the mash-tun at a still higher levelthan does the pipe P", and it, in connection with thev pipes P and J9, forms another set ofcon- -nections with the kettle. Itis true that two of these sets of pipe connections consist, throughout a portion of their course, `of the same parts; but this is merely a matter of convenience to save the expense 'of additional piping, and is not a matter fof neces sity.

I claim- 1. In an apparatus for producing wort, the combination of a mash-tun, a kettle, means for heating the latter, the three sets ot pipe connections, through anyoneof which the contents of the tun maybe drawn intotheket tle, one of the said connections opening into the mash-tun at the bottom thereof, another set at a 'somewhat higher level, and thethird at a level considerably higher than thefother two, and suitable valves for controlling the passage of the material through these l'difterent sets of connecting-pipes, substantially as set forth. l

2. In an apparatus for producing wort, the

combination of a mash-tun with a kettle and that the contents of the tun may pass to the.

kettle, being taken from the bottom of the tun, or somewhat above the bottom, or from a point considerably elevated above the bottom, said third pipe consisting of a short movable one within the Ytun and adapted to engage with the second-mentioned pipe connection above the bottom of the tun, so as with such second-mentioned pipe to constitute a third pipe opening into the tun at a higher elevation than either of the other two.

3. In an apparatus for producing wort, the combination of a mash-tun with an elevated storage-tun and a lower kettle to receive the thick mash from the mash-tun, connectingpipes from the tun to the kettle and from the kettle to the storage-tun and from the storage-tun to the mash-tun a pump situated in the line of the said connecting-pipesso that by gravity and the action of the pump the contents ofthe tun may be successively passed from the kettle and the storage-tlm back to the mash-tun, and a tank to receive the weak wort from the mash-tun, and connections from the' bottom ot' the mash-tun to such tank and from such tank to the storage-tnn,whereby the weak wort after treatment in such tank may also be carried to the storage-tun.

4. In an apparatus for producing wort, the combination of a mash-tun with a cooker, the bottom of the cooker connected with the top of the tun and a steam-pipe opening into the cooker, whereby the contents thereof may be forced by steam-pressure over into the tun, and a pipe from the bottom of the tun to the top of the cooker, whereby a portion of the contents of the tun may be returned to the cooker. 5. In an apparatus for producing wort, the following elements arranged substantially as specified, to wit: a mash-tun, a weak -wort tank connected therewith by a pipe leading from the bottom of the mash-tun to such tank, said tank provided with an exhaust apparatus, by means of which the weak-wort contents of the tun lnay be exhausted into the tank, and a kettle connected with the tun from a point within and somewhat above the bottom of such tun and adapted to receive the strong wort from the tun.

6.- In an apparatus for producing wort, the following elements arranged substantially as described, to wit: a mash -tun, a weak-wort -tank connected therewith by a pipe leading from the bottom of the mash-tun to such tank, said tank provided with an exhaust apparatus, by means of which the weak-wort contents of the tun may be exhausted into the tank, and a kettle connected with the tun and `adapted to receive the strong wort from the tun, said tun provided with a false perforated bottom, and the pipe leading to the kettle opening into the tun below such bottom,while the pipe leading to the tank also opens into the tun below such bottom, and -connectingpipes leading from both tun and tank to the storage-tun.

- 7. In an apparatus for producing wort, the combination of a mash-tun, a concentrating apparatus or vacuum-pan, a tank to receive the weak wort, with a pipe making a connection leading to 'the storage-tun and a pipe connection leading to the concentrating apparatus or vacuum-pan, said tank provided with an exhaust device to exhaust a portion of the contents of the mashing-tun into the tank, and means for forcing the wort from the said tank to the storage-tun.

CARL BACH. Witnesses:

CELESTEI P. CHAPMAN, JEAN ELLIOTT. 

